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Finding the Fourth Proportional to 614,124.87, 921,187.32 and 239,885.43

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Solution

The fourth proportional to 614,124.87, 921,187.32 and 239,885.43 is: 359,828.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,124.87 : 921,187.32 = 239,885.43 : x
  2. Step 2: Convert to fraction form
    614,124.87/921,187.32 = 239,885.43/x
  3. Step 3: Cross multiply
    614,124.87x = 921,187.32 × 239,885.43
  4. Step 4: Simplify right side
    614,124.87x = 220,979,416,368.75
  5. Step 5: Solve for x
    x = 220,979,416,368.75/614,124.87
  6. Step 6: Final answer
    x = 359,828.15

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.